package com.practice;

public class demo05 {
    public static void main(String[] args) {
        //定义sum用来把每个数字加起来
        int sum = 0;
        for (int i = 0; i <= 100; i++) {
            if (i % 2 == 0) {
                sum += i;
            }
        }
        System.out.println(sum);
    }
}
